Joint



c. KILBURN 1,823-,274

' JOINT Sept. 15, 1931.

Filed Dec. 5, 1929 I d f .22 X v y za "fi, z's

,3 a M /76.2 J 2 ll v A TTORNEYS.

. INVENTOR.

Patented Sept. 15, 1931 (3035351313 R. KIIIBURN, OF ERIE, PENNSYLVANIA JOINT Application filed December 5, 1929. Serial No. 411,776.

The present invention is designed to provide a'joint in which the members may be moved relatively to each other in different directions and locked in adjustment by the operation of one of themembers from a point remote from thejoint; Such a device is of particularutilityas a holder, or support, for electric lights. Such holders, or supports are used in working on machinery, suchfo'r instance, as automobiles where the operator has the light within easy reach and it is desired to change the position, or direction of reflection of the light from the position of the operator rather than at the point of support.

The invention is illustrated and exemplified as a support for a light which forms a preferred embodiment. Features and details of the invention will appear from the specification.

. A preferred embodiment of the invention is illustrated in the accompanying drawings as follows Fig. 1 shows an elevation of the device. Fig. 2 a section on the line 22 in Fig. '1'.

r Fig. .3 a front elevation of the joint itself.

Fig. 4 a detached view of a latch for a looking device.- 7 Fig. 5 a rear view of the joint proper.

" 1 marks a post, or standard, 2 a base through which the post, or standard may extend. The joint elements are arranged on an annular box-shaped mounting 3. This has anv annular shell 4 in which are opposing sleeves 5 through which the post 1 extends. It has the flanged face plate 6 at the rear side secured to the annular shell 4-and the flanged shaped cover plate 7 secured to the annular shell at the front. 'A looking plate 8 has an opening 9 through which the post 1 extends. This locking plate has a handle 10 which extends through an opening 11 in the plate 6.

It is pulledout to a position at right angles to the post by a spring 12 and this side pull brings the side walls of the opening into engagement with the post so that the mounting 3 is secured against a downward movement on the post. When it is desired to lower the mounting 3 on the post the plate 8 is brought to the horizontal, thus releasing the post and 5 permitting the downward movement. The

plate will release itself for a reverse movement. In order that the mounting may be freed from the operation of the locking plate 8 a latch 13 is pivotally mounted on the plate 6 and this has a slot 1 1 terminating in a narrower extension 15. WVith the latch 13 swung to bring the opening 141 into register with the handle 10 the plate 8 can assume the looking angle, but when the handle is lifted bringing the plate 8 to a direct horizontal the latch may be swung bringing the handle into the extension 15 in which event the handle when released rests on the bottom of the extension 15 which holds the plate in substantially a horizontal position and consequently holds it out of locking position. A. sleeve 16 is mounted on a rotating base 17, this base having an annular shoulder 18 operating in the out-turned flange 19. The plate 17 is secured to a locking plate 21 by bolts 20. The locking plate 21 has an internally beveled periphery 22 which engages a beveled inturned flange 23 on the cover plate 7.

A bar in the form of a conduit tube 24 is slidingly and rotatively mounted in the sleeve 16. It has a part of its wall grooved at 25 forming cam surfaces which operate upon a locking pin 26. The locking pin 26 extends through an opening 27 in the plate 17 and a perforation 28 inthe plate 21. Its inner end is adapted to engage the post 1 and is forced into position with relation to this post by a turning of the bar 24 and thus turning the cam 25 so as to act on the pin. This camming action operates as a complete lock of all the parts. Thethrust of the pin on the post 1 looks the oint case in place on the post. The thrust from the pin 26 is exerted against the sleeve 16 and this in turn is exerted against the plate 17 and plate 21, thus forcing the wedge-shaped periphery 22 into engagement 1 with the wedge 28, thus locking the plates 17 and 21 against turning and locking the sleeve 16 against rotation. The same turning of the bar in thesleeve 16 brings the surfaces of the bar into engagement with the end of the pin 26 and thus frictionally locks the bar in its turned position. This may be turned through quite a range of movement leaving the parts locked. In the use to which I have referred a lamp 29 is secured to the end of the bar 16 with a reflector 30. r In operation, it will readily be seen that an operator engaging the end of the bar 24 can, by turning it, loosen the connection, readjust the connection and lock it from a position quite remot from theconnection. This is of great convenience where the operator is, for instance, under a car and a movementv to bring the support .inreach. involves a. material effort.

What I claim as new is 1. In a joint, the combination of a connecting member having two; guidasleeves, one of: which is movable relatively to the connecting member; bars arranged insaid'sleeves; and

" Q In a. joint, the combination of means actuated by a rotation of one of the bars on; its axislockingsai'd sleeves relatively to eachother;

a connectlngmember having two guide sleeves, one

of which is movable; bars arranged in said sleeves, one of said bars being slidablein its sleeve; and means actuated by a rotation 0i oneofi the bars on it'saxis locking-said sleeves and bars relativelytoeach other.

3. Ina joint, thecombination of a connecti ngmember havlng two gulde sleeves, one oi "which is movable; bars arranged in said 'tatively mounted in its sleeve and means ac sleeves, oneof said bars being sli'dably and rotuated by a rotation of one of the bars on its axis locking said sleeves relatively to each other;

t. In a joint, thecombination-ofa connecting member having two guidesleeves, one of which is movable relatively to the connecting member; bars arranged insaidl sleeves; and

means actuated by a rotation ofone of the bars-on its axislockingysaid sleeves relatively to each other-and to one ofsa-id bars.

5; Inajoint, the combination of a connecting-member having twoguide sleeves, one of which is movable relativelyto the connecting member; bars arranged in said sleeves; and means actuated by a rotation of one ofthe barson itsaxis locking said sleeves relatively to eachother-and-to both of said bars.

6;; In a joint, the combination of a connecting-member having two guide sleeves, one of whi'ch'is rotatable; a conical mounting for said rotatablesleeve; bars arranged insaid sleeve; and means actuated by the rotation of one of the-bars on its aXis eXer-tingpressure on the conical mounting to lock the same.

7. In a joint, the combination of it connectingmember having two guide sleeves, one of which is rotatable; a conical mounting for said rotatable sleeve; bars arranged insaid sleeves; anda camon one-of said'barsadapted to locktheconical' mounting through the rotation; o-f'the bar on its axis.

necting member having two guide sleeves, one ofwhi'chis rotatable-; aconical mounting- .barsheing movable inthe sleeves; and means actuated by a movement of one of the bars in its sleeve for locking the bars and sleeves in position, said means comprising a cam surtace on the; ban BJIdzdEVlCGS actuated by the cam surfaces.

10. In a joint, the combination: of a connecting member having a'surround-ing shell and providing a conical shoulder; a rotating plate engaging the conical shoulder; a

sleeve rigid on the oonnecting member; a second sleeve-on the rotating plate; bars extending through said sleeves and means actuated'by the bar on the rotatingplate-lock ing the member and plate together and one of saidbars in position. I

11. In a joint, the combination of a connecting member having a surrounding shell and providing a conical shoulder a rotating plate engaging the conical shoulder a sleeve rigid on the connecting member; a second sleeve on the rotating plate; bars extending through said sleeves; and means actuated; by the bar on-the rotating plate locking the member and plate together and both of said bars in position.

- 12'. In a joint, the combination of a connecting member having a surrounding shell and providing a conical shoulder; a rotating pl'ate engaging the conical shoulder; a-.. sleeve rigid on the connecting member; a second sleeve on the rotating plate; bars extending through said sleeves; means actuated by the bar on the rotating plate locking the memher and: platetogether and'oneof said' bars in position; and a locking plate vadapted to= plate engaging-theconical shoulder; a sleeve rigid on the connecting member; a second sleeve on the rotating pla-te;;bars. extending through said sleeves; means actuated by the bar on the rotating plate locking the member and plate together and both of said. bars in position; a locking plate operating on: one of, said bars; and a latch. operating on the locking plate to hold it outot lockin'g'position.

14'. In a joint, the-combination: oi an an nular member; sleeve openings in. said annular member; cover CZLPSzOIl the SldGSaOft'llG 8. In a joint, the combination of a con-' gaging: said beveled surface; a sleeve. on: therotating beveled plate; a bar in said rotating sleeve, said bar having a cam surface; a bar in the sleeve in the annular member; a cam on the bar in the rotating sleeve; and a pin mounted in the rotating plate and actuated by the cam and engaging the bar in said sleeves carried by the annular member and exerting pressure on the locking plate to lock it in position.

15. In a joint, the combination of an annular member; sleeve openings in said annular member; cover caps on the sides of the annular member, one of said covercaps having a beveled flange; a rotating plate engag my hand.

ing said beveled surface; a sleeve on the rotating beveled plate; a bar in said rotating sleeve, said bar having a cam surface; a bar in the sleeve in the annular member; a cam on the bar in the rotating sleeve; and a pin mounted in the rotating plate and actuated by the cam and engaging the bar in the sleeves I carried by the annular member exerting pres sure onthe locking plate to lock it in position, said cam being adapted to exert a Wedging pressure on the bar having the cam toyieldingly lock said bar in the sleeve on the rotating plate.

In testimony Whereof I have hereunto set oomrrs R. KILBURN. 

